dlls/quartz/fgraph.c

   1 /*
   2  * Implementation of CLSID_FilterGraph.
   3  *
   4  * hidenori@a2.ctktv.ne.jp
   5  */
   6
   7 #include "config.h"
   8
   9 #include "windef.h"
  10 #include "winbase.h"
  11 #include "wingdi.h"
  12 #include "winuser.h"
  13 #include "winerror.h"
  14 #include "wine/obj_base.h"
  15 #include "wine/obj_oleaut.h"
  16 #include "strmif.h"
  17 #include "control.h"
  18 #include "uuids.h"
  19
  20 #include "debugtools.h"
  21 DEFAULT_DEBUG_CHANNEL(quartz);
  22
  23 #include "quartz_private.h"
  24 #include "fgraph.h"
  25
  26 /* can I use offsetof safely? - FIXME? */
  27 static QUARTZ_IFEntry IFEntries[] =
  28 {
  29   { &IID_IPersist, offsetof(CFilterGraph,persist)-offsetof(CFilterGraph,unk) },
  30   { &IID_IDispatch, offsetof(CFilterGraph,disp)-offsetof(CFilterGraph,unk) },
  31   { &IID_IFilterGraph, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
  32   { &IID_IGraphBuilder, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
  33   { &IID_IFilterGraph2, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
  34   { &IID_IGraphVersion, offsetof(CFilterGraph,graphversion)-offsetof(CFilterGraph,unk) },
  35   { &IID_IMediaControl, offsetof(CFilterGraph,mediacontrol)-offsetof(CFilterGraph,unk) },
  36   { &IID_IMediaFilter, offsetof(CFilterGraph,mediafilter)-offsetof(CFilterGraph,unk) },
  37   { &IID_IMediaEvent, offsetof(CFilterGraph,mediaevent)-offsetof(CFilterGraph,unk) },
  38   { &IID_IMediaEventEx, offsetof(CFilterGraph,mediaevent)-offsetof(CFilterGraph,unk) },
  39   { &IID_IMediaEventSink, offsetof(CFilterGraph,mediaeventsink)-offsetof(CFilterGraph,unk) },
  40   { &IID_IMediaPosition, offsetof(CFilterGraph,mediaposition)-offsetof(CFilterGraph,unk) },
  41   { &IID_IMediaSeeking, offsetof(CFilterGraph,mediaseeking)-offsetof(CFilterGraph,unk) },
  42   { &IID_IBasicVideo, offsetof(CFilterGraph,basvid)-offsetof(CFilterGraph,unk) },
  43   { &IID_IBasicVideo2, offsetof(CFilterGraph,basvid)-offsetof(CFilterGraph,unk) },
  44   { &IID_IBasicAudio, offsetof(CFilterGraph,basaud)-offsetof(CFilterGraph,unk) },
  45   { &IID_IVideoWindow, offsetof(CFilterGraph,vidwin)-offsetof(CFilterGraph,unk) },
  46 };
  47
  48
  49 struct FGInitEntry
  50 {
  51         HRESULT (*pInit)(CFilterGraph*);
  52         void (*pUninit)(CFilterGraph*);
  53 };
  54
  55 static const struct FGInitEntry FGRAPH_Init[] =
  56 {
  57         #define FGENT(a)        {&CFilterGraph_Init##a,&CFilterGraph_Uninit##a},
  58
  59         FGENT(IPersist)
  60         FGENT(IDispatch)
  61         FGENT(IFilterGraph2)
  62         FGENT(IGraphVersion)
  63         FGENT(IMediaControl)
  64         FGENT(IMediaFilter)
  65         FGENT(IMediaEventEx)
  66         FGENT(IMediaEventSink)
  67         FGENT(IMediaPosition)
  68         FGENT(IMediaSeeking)
  69         FGENT(IBasicVideo2)
  70         FGENT(IBasicAudio)
  71         FGENT(IVideoWindow)
  72
  73         #undef  FGENT
  74         { NULL, NULL },
  75 };
  76
  77
  78 static void QUARTZ_DestroyFilterGraph(IUnknown* punk)
  79 {
  80         CFilterGraph_THIS(punk,unk);
  81         int     i;
  82
  83         /* At first, call Stop. */
  84         IMediaControl_Stop( CFilterGraph_IMediaControl(This) );
  85         IMediaFilter_Stop( CFilterGraph_IMediaFilter(This) );
  86
  87         i = 0;
  88         while ( FGRAPH_Init[i].pInit != NULL )
  89         {
  90                 FGRAPH_Init[i].pUninit( This );
  91                 i++;
  92         }
  93
  94         TRACE( "succeeded.\n" );
  95 }
  96
  97 HRESULT QUARTZ_CreateFilterGraph(IUnknown* punkOuter,void** ppobj)
  98 {
  99         CFilterGraph*   pfg;
 100         HRESULT hr;
 101         int     i;
 102
 103         TRACE("(%p,%p)\n",punkOuter,ppobj);
 104
 105         pfg = (CFilterGraph*)QUARTZ_AllocObj( sizeof(CFilterGraph) );
 106         if ( pfg == NULL )
 107                 return E_OUTOFMEMORY;
 108
 109         QUARTZ_IUnkInit( &pfg->unk, punkOuter );
 110
 111         i = 0;
 112         hr = NOERROR;
 113         while ( FGRAPH_Init[i].pInit != NULL )
 114         {
 115                 hr = FGRAPH_Init[i].pInit( pfg );
 116                 if ( FAILED(hr) )
 117                         break;
 118                 i++;
 119         }
 120
 121         if ( FAILED(hr) )
 122         {
 123                 while ( --i >= 0 )
 124                         FGRAPH_Init[i].pUninit( pfg );
 125                 QUARTZ_FreeObj( pfg );
 126                 return hr;
 127         }
 128
 129         pfg->unk.pEntries = IFEntries;
 130         pfg->unk.dwEntries = sizeof(IFEntries)/sizeof(IFEntries[0]);
 131         pfg->unk.pOnFinalRelease = QUARTZ_DestroyFilterGraph;
 132
 133         *ppobj = (void*)(&pfg->unk);
 134
 135         return S_OK;
 136 }
 137
 138